Sherlock takes a private case when a philanthropist with dementia believes that someone is murdering him. He also starts to officially train Watson by sending her on errands and having her present her own theories on their case.

Recap

The episode begins at a crime scene where Bell tells Holmes that the two men who are murdered worked for ZBZ Securities and they had a contract for the museum. But Bell tells them that there is nothing missing from the museum. Holmes wants Watson to analyze the scene and state her deductions. Watson is taken aback; but she quickly gathers herself and tells him that the men were chased on to the parking lot and then shot. But the direction, in which the killer ran off, cannot be determined. Holmes tells her that there was no chase at all. Judging by the uniforms, Holmes tells them that one of them is a bad man posing as a guard and the other one is a real security guard. ..

When Sherlock is on the phone before telling Watson that they're going to Norway he says, "Når er kontorene deres åpne for publikum? Takk for det. Ha det bra." He's asking whoever is on the other line, "When are your offices open to the public? Thank you. Goodbye."

(Watson asks Sherlock why he denied knowing about the dry cleaners while he tries to catch his loose bee.)Sherlock:I wanted you to learn to trust your instincts. (Slams the jar down catching the bee.) A good detective knows that every task, every interaction, no matter how seemingly benahl, has the potential to contain multitudes. I live my life alert to this possibility. I expect my colleagues to do the same.